<template>
    <div>
        <!-- 面包屑区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input clearable @clear="getUserList" v-model="queryInfo.query" placeholder="请输入内容">
                        <el-button @click="getUserList" slot="append" icon="el-icon-search"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 表格 -->
            <el-table :data="userlist" border stripe>
                <!-- 表头 prop可以指定数据 从 data中获取 -->
                <el-table-column type="index" label="#"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="suerStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作">
                    <template slot-scope="scope">
                        <div>
                            <!-- 修改按钮 -->
                            <el-button @click="showEditDialog(scope.row.id)" type="primary" icon="el-icon-edit"
                                size="mini"></el-button>
                            <!-- 删除按钮 -->
                            <el-button @click="removeUserById(scope.row.id)" type="danger" icon="el-icon-delete"
                                size="mini"></el-button>
                            <!-- 分配角色按钮 -->
                            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                                <el-button @click="setRole(scope.row)" type="warning" icon="el-icon-setting"
                                    size="mini"></el-button>
                            </el-tooltip>
                        </div>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>
        </el-card>
        <!-- 添加用户的对话框 -->
        <el-dialog @close="addDialogClosed" title="添加用户" :visible.sync="addDialogVisible" width="50%">
            <!-- 内容主体区域 -->
            <el-form ref="addFormRef" :model="addForm" :rules="addFormRules" label-width="70px">
                <!-- 用户名 -->
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <!-- 邮箱 -->
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <!-- 手机号 -->
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 顶部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
            <!-- 内容主体区域 -->
            <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
                <!-- 用户名 -->
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <!-- 邮箱 -->
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <!-- 手机号 -->
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 顶部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 分配角色对话框 -->
        <el-dialog @close="setRoleDialogClosed" title="分配角色" :visible.sync="setRoleDialogVisible" width="50%">
            <div>
                <p>当前的用户：{{ userInfo.username }}</p>
                <p>当前的角色：{{ userInfo.role_name }}</p>
                <p>分配新角色
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="savaRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    name: 'MyUsers',
    data() {
        // 验证邮箱的规则
        var checkEmail = (rule, value, cb) => {
            const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if (regEmail.test(value)) {
                return cb()
            }
            cb(new Error("请输入合法的邮箱"))
        }
        var checkMobile = (rule, value, cb) => {
            const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
            if (regMobile.test(value)) {
                return cb()
            }
            cb(new Error("请输入合法的手机号"))
        }
        return {
            // 验证手机号的规则
            userlist: [],
            queryInfo: {
                query: "",
                pagenum: 1,
                pagesize: 2
            },
            total: 0,
            addDialogVisible: false,
            addForm: {
                username: "",
                password: "",
                email: "",
                mobile: ""
            },
            // 添加用户的表单数据
            addFormRules: {
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ],
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { validator: checkEmail, trigger: 'blur' }
                ],
                mobile: [
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    { validator: checkMobile, trigger: 'blur' }
                ],
            },
            // 控制修改对话框显示隐藏
            editDialogVisible: false,
            // 保存用户信息
            editForm: {},
            // 修改表单的正则验证
            editFormRules: {
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { validator: checkEmail, trigger: 'blur' }
                ],
                mobile: [
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    { validator: checkMobile, trigger: 'blur' }
                ],
            },
            // 分配角色对话框的显示隐藏
            setRoleDialogVisible: false,
            // 需要被分配角色的用户信息
            userInfo: {},
            // 所有角色的数据列表
            rolesList: [],
            // 已选中角色的Id
            selectedRoleId: ""
        };
    },
    created() {
        this.getUserList()
    },
    methods: {
        async getUserList() {
            const { data: res } = await this.$http.get("/users", { params: this.queryInfo })
            // console.log(res);
            if (res.meta.status !== 200) return this.$message.error("获取用户列表失败")
            this.userlist = res.data.users
            this.total = res.data.total
        },
        // 监听pagesize 改变
        handleSizeChange(newSize) {
            // console.log(newSize);
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        // 监听页码值发送改变
        handleCurrentChange(newPage) {
            // console.log(newPage);
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        // 监听用户状态是否改变
        async suerStateChanged(userinfo) {
            // console.log(userinfo);
            const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if (res.meta.status !== 200) {
                userinfo.mg_state = !userinfo.mg_state
                return this.$message.error("更新用户状态失败")
            }
            this.$message.success("更新用户状态成功")
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed() {
            this.$refs.addFormRef.resetFields()
        },
        // 添加新用户
        addUser() {
            this.$refs.addFormRef.validate(async valid => {
                if (!valid) return
                // 网络请求
                const { data: res } = await this.$http.post("users", this.addForm)
                // 判断状态码是否为201 201成功
                if (res.meta.status !== 201) {
                    return this.$message.error("添加用户失败")
                }
                // 如果没return
                this.$message.success("添加用户成功")
                // 隐藏添加用户的对话框
                this.addDialogVisible = false
                // 重新获取数据列表
                this.getUserList()
            })
        },
        // 修改用户
        async showEditDialog(id) {
            // console.log(id);
            const { data: res } = await this.$http.get("users/" + id)
            // 判断状态码是否为200
            if (res.meta.status !== 200) return this.$message.error("查询用户信息失败")
            this.editForm = res.data
            this.editDialogVisible = true
        },
        // 监听修改用户对话框的关闭事件
        editDialogClosed() {
            this.$refs.editFormRef.resetFields()
        },
        editUserInfo() {
            this.$refs.editFormRef.validate(async valid => {
                //    校验不成功return
                if (!valid) return
                // 修改 接口
                const { data: res } = await this.$http.put("users/" + this.editForm.id, {
                    email: this.editForm.email,
                    mobile: this.editForm.mobile
                })
                if (res.meta.status !== 200) return this.$message.error("更新用户信息失败")
                // 关闭对话框
                this.editDialogVisible = false
                // 刷新数据列表
                this.getUserList()
                this.$message.success("更新用户信息成功")
            })
        },
        // 删除按钮
        async removeUserById(id) {
            const configResult = await this.$confirm("此操作将永久删除该用户,是否继续?", "提示", {
                confirmButtonText: "确定",
                cancelButtonText: "取消",
                type: "warning"
            }).catch(err => err)
            // 如果用户确认删除 字符串为 confirm
            // 如果用户取消删除 字符串为 cancel
            if (configResult !== "confirm") {
                return this.$message.info("已取消删除")
            }
            // 调删除接口
            const { data: res } = await this.$http.delete("users/" + id)
            if (res.meta.status !== 200) return this.$message.error("用户删除失败")
            // 如果是200说明成功了
            this.$message.success("用户删除成功")
            // 重新获取
            this.getUserList()
        },
        // 展示分配权限的对话框
        async setRole(userInfo) {
            this.userInfo = userInfo
            // 在展示对话框之前 需要获取数据
            const { data: res } = await this.$http.get("roles")
            if (res.meta.status !== 200) return this.$message.error("获取角色列表失败")
            this.rolesList = res.data
            this.setRoleDialogVisible = true
        },
        // 分配角色对话框的确定
        async savaRoleInfo() {
            // 判断是否有选下拉框
            if (!this.selectedRoleId) return this.$message.error("请选择需要分配的角色")
            const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
                rid: this.selectedRoleId
            })
            if (res.meta.status !== 200) this.$message.error("更新角色失败")
            this.$message.success("更新角色成功")
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        setRoleDialogClosed() {
            this.selectedRoleId = ""
            this.userInfo = {}
        }
    }
}
</script>

<style lang='less' scoped></style>